String winding device for bagging machines



' May 10, 1932. P. ROHRIG 1,857,661

STRING WINDING DEVICE FOR BAGGING MACHINES Filed May 27, 1929 PatentedMay 10, 1932 p PAUL 301mm, or BELLAIRE; NEW YORK, AssiGNon'r'o rNEumA'im sc uin l co nronn- TION, L'TDi, orv NORFOLK IDOWNS,"milssacnusirn'rsgn' CORPORATION ortmssa- 1 I y I I 1" -1 i. w ii 3" 1'2CHUSETTS 1 s'mme WINDING nnvrcnironrneeino-mecnnins App1ication filedMay27; 192a sriarmgaea'iazy i Y The present invention comprises a stringwinding device of particular value as an attachment to known machinesfor making and tagging tea cartridges, although susceptible ofadvantageous use whenever it is desired to cautomatlcally wind stringaround a member. I, The device when used as an attachment to'tea.

' ba machines eliminates the operation iheretoiore manually, performedof winding 10 about the completed cartridge the stringcarryingthe tag,in order that the cartridges may be packed in and removed from cartons:7 without entangling the strings one with .an- 3 other. 7

There are now in'ruse numerous automatic machines for producing teacartridges, or

-balls, which are provided with means, for automatically fastening ashort length of string toithe neck of the bagand forapplying a tag orhandletothe .fmegend of the string. Other machines are in usewhich perform the latter operations only. Still other machines fill andform thecartridges and apply a metallicsplit circlet, to which the tagged ually.attached,- to.,the y H v v y It .18 mo nted up h fr me. be wpth pathiofniov ement of theoute en dPof the 25, string has been man Q neck ofthe cartridge.

The finished roduct from v such machines is packed in: cartons fordelivery, usually at least six cartridgesbeing packed together in 80each carton.v Before packing, it is necessary, 1

in order toE-permitseparate .removal of the cartridges,that thetagged'strin-g of each be closely wrappedla 'ound the cartridge, and this hasheretofore been done manually, usual- 85 ly at least two operators beingnecessary to a The present device isofi simple construction and-may, bereadily and econom cally added to the machines now in'usejwithoutsubstantial modification of their: 'c onstrucy tion or any interferencewith their. usual pt H p ..l1 r s ing lna nnn ar g f Fig; '1 is a sidevewpartly 1n "of fiotthe preferred embodimentof the invention 1 2 is lapsp ct 11 in section, of the; windingjdeviceg' an 7 Fig. 3 is a" view{off'afltea' eartridge' after delivery from a machine {provided with theradially] dispos d: gripping jaws 2jfiaref inanisms" by which theseoperations are performed as'a're essential for understanding the hem themaehineff'lThi's'device5fcomp fiss and da y motm xma rod end of. whichiS screw-threadedly I N I H I p p ll yfi nt n ha Shaf "machine, 1 armdevice. v Machines of the type with which the device 1s adaptedto beusedfcomprise: aframe, the" upper portion of which forms atablel overwhich, in a horizontal plane, a plurality. Of

termittently rot'ated Ta-bout a central point,

by means of suitable cams and? caring (not-l shown) from a mainfdriveshat'l3l-i {Jaws 2 carry the cartridge 4 whilethe various" op- I erationsof bag forming tea filling, fstrin'gand label attaching arefperformed,and are final- [ly "openedf l to discharge "the completed car-f" tridge;Only so much of the vario usjmechaoperation of the device, areillustrated herein,

ja ,3 .9 i i' poi dnov -whi fi hej w are adapted,tofpass'justf priortoftll r openmg ie ent d char t he a it idge a cylindrical metal memberprovided, zi l'bfig theoutersurface of its ilpper endiwith a.

7 number of' 1 ngitudi a1j,igr oves,a," Groups or stiff bristles or the,n g ;7- jarejlocatedi in thef grooves 6andQarethereheld.placby abiriding'ring r eLdevice g 5i; rotatably he'lower [Quilted p p w p, ig'huy smaller than the internal diameter Iofthe cy-" lower portion oftheflevice "hi1 fbe driven in an suitable "m'a heg. asgb been "gears-15,from themain drive shaft 3 of the 1 ,-.Pi 9t 1y m unt for they form" nopart of thei presentinven 60 to wind string about a member,,whether oron frame -1, when rocked about its ivot,

2, by means of a forked member 17 at- F1 "taclied 'to arm. 16 andcarrying rollers (not shown) adapted to rest in an annular groove 18 ondevice 5., Any suitable means may be employed for rocking arm 16immediately after aws 2 have brought the tea cartridge over evice 5, asby a member 19 in contact with the end of arm 16, adapted tointermittently bear down'thereupon. When the deteaw . wound about thecartri vice is used in connection with the type of machine which appliesthe label and thereafter cuts the string beyond the label, member 19 mayconveniently be mounted on the string cutting mechanism. Release of arm16 by member 19 permits the device to be lowered by gravit The 0 eratlon0% the ap aratus above described 13 as follows: A ter 'aws 2 havebrought the completed 'cartri ge over the winding device, the latter israised b arm 16 into the position where the cylindrical 01'- tionsurrounds the cartridge, as shown in ig.

2. The string 20 is then caught by the bristles 7, or between adjacent.roups thereof, and g? by the rotation of-device 5. The bristles, eingyieldable, do

not catch and tear the label from the string,.

but permit the same to be drawn up to the cartridge by the winding ofthe string.

Upon the completion of the winding operation, member 19 releases arm 16,permitting device 5 to descend b gravity out of the path of thecantridge, an jaws 2 thereupon move to the discharge position of themachine.

The cartridge, when delivered, is ready for immediate packing, with thetagged string m neatly wound thereabout, as shown in Fig. 3.

When the device is employed with the type of machine which applies thelabel to a taut string and thereafter cuts the string beyond the label,it is preferable to provide a pair of shields'21 and 22, as shown inFig.1, suitably mounted to a fixed part of the .machine, to

revent the rebound of the string, when out,

rom throwing it around the aws 2, or around 1 the cartridge prior-to theraising of device 5. It is alsopreferable to provide the cylindricalportion of device 5 with a'series of apertures 23 t0 1 cartridge duringthe winding opera'tion.

ts vention is a preferred form for use as an at- The above describedembodiment of themtachment to tea bag machines. It is to be .understood,however, that the inventionis not limited to suchuse, as the device-mayadvantageously employedwherever it is. desired not a label is attachedto. the string, and

I whether or not the member about :which the pr'event accumulationof anyparticles of ich may sift throughthe gauze of the at such yieldablemeans are not essential to the device except when the string hasattached thereto a tag or label at the free end.

Iclaimz' 1. A" string winding attachment for bag machines comprising ahollow cylindrical member vertically positioned with'reference to itsaxis and provided'at its upper periphery with vertically projectingyieldable mem hers, means for continuously rotating said cylindricalmember about" its axis, and means for vertically raising the same duringthe rotation thereof into a position where said yield-. able members maycatch the string of the bag therebetween. 4

2. In combination-with means for holding a tea cartridge having anattached string, an attachment for winding the attached string about thecartridge comprising a device adapted when in one 'catch' the string,means or moving said device into said position, and means for rotatingsaid device. I v I 3. In combination with means for holding a memberhaving one end of a string attached thereto, a device for winding thestring about said member comprising a cylindrical element adapted to bepositioned about said member and provided atits upper end with means forrotating said element,

osition to yieldably 4. The combination'according to claim 3 whereinsaid holding means comprised spaced groups of bristles or the like. 5;The combination with means forholding a tea bag, of a hollow string Twinding member capable of being moved over .thebag, andprovided with meansfor, slidably engaging the string, meansfiformovingthe wlnding memberinto and from operative position, and means for rotating the windingelement whilein operative position. I

6. The combination with a'holding device forholding the neck portion ofa'tea bag, of a string winding member Ifpr'ovided with means forslidably engaging the string, and being movable into and from a positionwhich upon'rotation is adapted to effect the winding of the string,about the neck "portion ofthe tea bag, and means for rotating thewinding elementwhile in such position. 7. The combination with means forholdmg a tea bag, of. a spring winding element comprising a hollowmember provided upon its periphery with a plurality of yieldable membersfor slidabl engaging the string, means for rotatingt e hollow member,and means for moving the hollow member toward and from the bagholding'member.

, 8; The combination with means for holding a 'filled bag having'a'handle' includinga flexible member attached 'at one end to the neckof the bag and projecting for a substantial distance therefrom, ofmechanism for Y winding up substantiall the entire projecting portionofthe flexi 1e member, around the neck of the bag for purposes of shipmentincluding a member for engaging said handle during the entire windingoperation, and

means for effecting relative rotation of said member and the bag holdingmeans.

9. The combinatlon with means for hold-' ing a filled bag having ahandle including a flexible member attached at one end to the neck ofthe bag and projecting for a substan tial distance therefrom, ofmechanism for winding up substantially the entire project:

- ing portion ofthe flexible member, around the neck of the bag forpurposes of shipment I I includin a rotatable member for engaging andwin' ing the flexible member about the neck of the bag and means foreflecting rota- 7 tion of said rotatable member. I

10. The combination with meansfor holding a filled bag having a handleincluding a flexible member attached at one end to the neck of the bagand projecting for a substantial distance therefrom, of mechanism forwinding up substantially the. entire project.- ing portion of thefiexible'member, around the neck of the bag. for purposes of shi mentincluding a'rotatable member movab e into and out of operative positionand arranged when in operative position to engage said flexible memberand wind it about the I neck of the bag.

In testimony whereof, I have signed my name to this specification.

- PAUL'ROI-IRIG.

